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Class: Program

Defined in: packages/core/src/lib/program.ts:74

Program - Low-level terminal I/O, escape sequences, and terminal control.

Remarks​

Program is the low-level interface between unblessed and the terminal. It provides:

  • I/O Management: Reads input, writes output via streams
  • Escape Sequences: Converts high-level commands to terminal codes
  • Terminal Capabilities: Loads and uses terminfo/termcap databases
  • Input Processing: Parses keyboard and mouse events
  • Buffer Management: Optimizes terminal output

Program is typically created and managed by Screen. You rarely instantiate it directly.

Examples​

import { Screen } from "@unblessed/node";

const screen = new Screen();
const program = screen.program; // Access Program instance

// Use Program methods directly
program.clear();
program.cup(5, 10); // Move cursor to row 5, col 10
program.write("Hello!");
program.enableMouse();
program.setMouse({ allMotion: true, sendFocus: true }, true);

program.on("mouse", (data) => {
  console.log(`Mouse: ${data.action} at (${data.x}, ${data.y})`);
});
program.on("keypress", (ch, key) => {
  console.log("Key:", key.full);

  if (key.name === "q" || (key.ctrl && key.name === "c")) {
    program.normalBuffer();
    program.showCursor();
    process.exit(0);
  }
});

See​

  • Screen for high-level screen management
  • Runtime for platform abstraction

Extends​

  • EventEmitterBase

Indexable​

[key: string]: any

Constructors​

Constructor​

new Program(options?, legacyOutput?): Program

Defined in: packages/core/src/lib/program.ts:134

Parameters​

options?​

any

legacyOutput?​

any

Returns​

Program

Overrides​

EventEmitterBase.constructor

Properties​

runtime​

runtime: Runtime

Defined in: packages/core/src/lib/program.ts:75

options​

options: Record<string, any>

Defined in: packages/core/src/lib/program.ts:76

input​

input: ReadStream & object

Defined in: packages/core/src/lib/program.ts:77

Type Declaration​

_blessedInput?​

optional _blessedInput: number

_keypressHandler?​

optional _keypressHandler: any

_dataHandler?​

optional _dataHandler: any

output​

output: WriteStream & object

Defined in: packages/core/src/lib/program.ts:82

Type Declaration​

_blessedOutput?​

optional _blessedOutput: number

_resizeHandler?​

optional _resizeHandler: any

_logger?​

optional _logger: WriteStream

Defined in: packages/core/src/lib/program.ts:86

zero​

zero: boolean

Defined in: packages/core/src/lib/program.ts:87

useBuffer​

useBuffer: boolean

Defined in: packages/core/src/lib/program.ts:88

x​

x: number

Defined in: packages/core/src/lib/program.ts:89

y​

y: number

Defined in: packages/core/src/lib/program.ts:90

savedX​

savedX: number

Defined in: packages/core/src/lib/program.ts:91

savedY​

savedY: number

Defined in: packages/core/src/lib/program.ts:92

cols​

cols: number

Defined in: packages/core/src/lib/program.ts:93

rows​

rows: number

Defined in: packages/core/src/lib/program.ts:94

scrollTop​

scrollTop: number

Defined in: packages/core/src/lib/program.ts:95

scrollBottom​

scrollBottom: number

Defined in: packages/core/src/lib/program.ts:96

_terminal​

_terminal: string

Defined in: packages/core/src/lib/program.ts:97

isOSXTerm​

isOSXTerm: boolean

Defined in: packages/core/src/lib/program.ts:98

isiTerm2​

isiTerm2: boolean

Defined in: packages/core/src/lib/program.ts:99

isXFCE​

isXFCE: boolean

Defined in: packages/core/src/lib/program.ts:100

isTerminator​

isTerminator: boolean

Defined in: packages/core/src/lib/program.ts:101

isLXDE​

isLXDE: boolean

Defined in: packages/core/src/lib/program.ts:102

isVTE​

isVTE: boolean

Defined in: packages/core/src/lib/program.ts:103

isRxvt​

isRxvt: boolean

Defined in: packages/core/src/lib/program.ts:104

isXterm​

isXterm: boolean

Defined in: packages/core/src/lib/program.ts:105

tmux​

tmux: boolean

Defined in: packages/core/src/lib/program.ts:106

tmuxVersion​

tmuxVersion: number

Defined in: packages/core/src/lib/program.ts:107

_buf​

_buf: string

Defined in: packages/core/src/lib/program.ts:108

_flush()​

_flush: () => void

Defined in: packages/core/src/lib/program.ts:109

Returns​

void

tput?​

optional tput: any

Defined in: packages/core/src/lib/program.ts:110

put?​

optional put: any

Defined in: packages/core/src/lib/program.ts:111

_tputSetup?​

optional _tputSetup: boolean

Defined in: packages/core/src/lib/program.ts:112

_newHandler?​

optional _newHandler: any

Defined in: packages/core/src/lib/program.ts:113

_boundMouse?​

optional _boundMouse: boolean

Defined in: packages/core/src/lib/program.ts:114

_lastButton?​

optional _lastButton: string

Defined in: packages/core/src/lib/program.ts:115

_currentMouse?​

optional _currentMouse: any

Defined in: packages/core/src/lib/program.ts:116

mouseEnabled?​

optional mouseEnabled: boolean

Defined in: packages/core/src/lib/program.ts:117

_boundResponse?​

optional _boundResponse: boolean

Defined in: packages/core/src/lib/program.ts:118

_rx?​

optional _rx: number

Defined in: packages/core/src/lib/program.ts:119

_ry?​

optional _ry: number

Defined in: packages/core/src/lib/program.ts:120

cursorHidden?​

optional cursorHidden: boolean

Defined in: packages/core/src/lib/program.ts:121

_saved?​

optional _saved: Record<string, any>

Defined in: packages/core/src/lib/program.ts:122

isAlt?​

optional isAlt: boolean

Defined in: packages/core/src/lib/program.ts:123

_title?​

optional _title: string

Defined in: packages/core/src/lib/program.ts:124

_exiting?​

optional _exiting: boolean

Defined in: packages/core/src/lib/program.ts:125

destroyed?​

optional destroyed: boolean

Defined in: packages/core/src/lib/program.ts:126

ret?​

optional ret: boolean

Defined in: packages/core/src/lib/program.ts:127

_resume()?​

optional _resume: () => void

Defined in: packages/core/src/lib/program.ts:128

Returns​

void

gpm?​

optional gpm: any

Defined in: packages/core/src/lib/program.ts:129

_resizeTimer?​

optional _resizeTimer: Timeout

Defined in: packages/core/src/lib/program.ts:130

_programIndex?​

optional _programIndex: number

Defined in: packages/core/src/lib/program.ts:131

global​

static global: Program | null = null

Defined in: packages/core/src/lib/program.ts:235

total​

static total: number = 0

Defined in: packages/core/src/lib/program.ts:236

instances​

static instances: Program[] = []

Defined in: packages/core/src/lib/program.ts:237

_bound​

static _bound: boolean = false

Defined in: packages/core/src/lib/program.ts:238

_exitHandler​

static _exitHandler: () => void | null = null

Defined in: packages/core/src/lib/program.ts:239

type​

type: string = "program"

Defined in: packages/core/src/lib/program.ts:275

Accessors​

programIndex​

Get Signature​

get programIndex(): number

Defined in: packages/core/src/lib/program.ts:280

Get the program's index in the instances array.

Returns​

number

terminal​

Get Signature​

get terminal(): string

Defined in: packages/core/src/lib/program.ts:446

Returns​

string

Set Signature​

set terminal(newTerminal): void

Defined in: packages/core/src/lib/program.ts:450

Parameters​
newTerminal​

string

Returns​

void

title​

Get Signature​

get title(): string

Defined in: packages/core/src/lib/program.ts:2069

Returns​

string

Set Signature​

set title(newTitle): void

Defined in: packages/core/src/lib/program.ts:2073

Parameters​
newTitle​

string

Returns​

void

Methods​

on()​

on(event, listener): this

Defined in: packages/core/src/lib/event-emitter-base.ts:48

Adds the listener function to the end of the listeners array for the event named eventName. No checks are made to see if the listener has already been added. Multiple calls passing the same combination of eventName and listener will result in the listener being added, and called, multiple times.

server.on("connection", (stream) => {
  console.log("someone connected!");
});

Returns a reference to the EventEmitter, so that calls can be chained.

By default, event listeners are invoked in the order they are added. The emitter.prependListener() method can be used as an alternative to add the event listener to the beginning of the listeners array.

import { EventEmitter } from "node:events";
const myEE = new EventEmitter();
myEE.on("foo", () => console.log("a"));
myEE.prependListener("foo", () => console.log("b"));
myEE.emit("foo");
// Prints:
//   b
//   a

Parameters​

event​

string | symbol

listener​

(...args) => void

The callback function

Returns​

this

Since​

v0.1.101

Inherited from​

EventEmitterBase.on

addListener()​

addListener(event, listener): this

Defined in: packages/core/src/lib/event-emitter-base.ts:53

Alias for emitter.on(eventName, listener).

Parameters​

event​

string | symbol

listener​

(...args) => void

Returns​

this

Since​

v0.1.26

Inherited from​

EventEmitterBase.addListener

once()​

once(event, listener): this

Defined in: packages/core/src/lib/event-emitter-base.ts:61

Adds a one-time listener function for the event named eventName. The next time eventName is triggered, this listener is removed and then invoked.

server.once("connection", (stream) => {
  console.log("Ah, we have our first user!");
});

Returns a reference to the EventEmitter, so that calls can be chained.

By default, event listeners are invoked in the order they are added. The emitter.prependOnceListener() method can be used as an alternative to add the event listener to the beginning of the listeners array.

import { EventEmitter } from "node:events";
const myEE = new EventEmitter();
myEE.once("foo", () => console.log("a"));
myEE.prependOnceListener("foo", () => console.log("b"));
myEE.emit("foo");
// Prints:
//   b
//   a

Parameters​

event​

string | symbol

listener​

(...args) => void

The callback function

Returns​

this

Since​

v0.3.0

Inherited from​

EventEmitterBase.once

emit()​

emit(event, ...args): boolean

Defined in: packages/core/src/lib/event-emitter-base.ts:66

Synchronously calls each of the listeners registered for the event named eventName, in the order they were registered, passing the supplied arguments to each.

Returns true if the event had listeners, false otherwise.

import { EventEmitter } from "node:events";
const myEmitter = new EventEmitter();

// First listener
myEmitter.on("event", function firstListener() {
  console.log("Helloooo! first listener");
});
// Second listener
myEmitter.on("event", function secondListener(arg1, arg2) {
  console.log(`event with parameters ${arg1}, ${arg2} in second listener`);
});
// Third listener
myEmitter.on("event", function thirdListener(...args) {
  const parameters = args.join(", ");
  console.log(`event with parameters ${parameters} in third listener`);
});

console.log(myEmitter.listeners("event"));

myEmitter.emit("event", 1, 2, 3, 4, 5);

// Prints:
// [
//   [Function: firstListener],
//   [Function: secondListener],
//   [Function: thirdListener]
// ]
// Helloooo! first listener
// event with parameters 1, 2 in second listener
// event with parameters 1, 2, 3, 4, 5 in third listener

Parameters​

event​

string | symbol

args​

...any[]

Returns​

boolean

Since​

v0.1.26

Inherited from​

EventEmitterBase.emit

removeListener()​

removeListener(event, listener): this

Defined in: packages/core/src/lib/event-emitter-base.ts:70

Removes the specified listener from the listener array for the event named eventName.

const callback = (stream) => {
  console.log("someone connected!");
};
server.on("connection", callback);
// ...
server.removeListener("connection", callback);

removeListener() will remove, at most, one instance of a listener from the listener array. If any single listener has been added multiple times to the listener array for the specified eventName, then removeListener() must be called multiple times to remove each instance.

Once an event is emitted, all listeners attached to it at the time of emitting are called in order. This implies that any removeListener() or removeAllListeners() calls after emitting and before the last listener finishes execution will not remove them fromemit() in progress. Subsequent events behave as expected.

import { EventEmitter } from "node:events";
class MyEmitter extends EventEmitter {}
const myEmitter = new MyEmitter();

const callbackA = () => {
  console.log("A");
  myEmitter.removeListener("event", callbackB);
};

const callbackB = () => {
  console.log("B");
};

myEmitter.on("event", callbackA);

myEmitter.on("event", callbackB);

// callbackA removes listener callbackB but it will still be called.
// Internal listener array at time of emit [callbackA, callbackB]
myEmitter.emit("event");
// Prints:
//   A
//   B

// callbackB is now removed.
// Internal listener array [callbackA]
myEmitter.emit("event");
// Prints:
//   A

Because listeners are managed using an internal array, calling this will change the position indices of any listener registered after the listener being removed. This will not impact the order in which listeners are called, but it means that any copies of the listener array as returned by the emitter.listeners() method will need to be recreated.

When a single function has been added as a handler multiple times for a single event (as in the example below), removeListener() will remove the most recently added instance. In the example the once('ping') listener is removed:

import { EventEmitter } from "node:events";
const ee = new EventEmitter();

function pong() {
  console.log("pong");
}

ee.on("ping", pong);
ee.once("ping", pong);
ee.removeListener("ping", pong);

ee.emit("ping");
ee.emit("ping");

Returns a reference to the EventEmitter, so that calls can be chained.

Parameters​

event​

string | symbol

listener​

(...args) => void

Returns​

this

Since​

v0.1.26

Inherited from​

EventEmitterBase.removeListener

off()​

off(event, listener): this

Defined in: packages/core/src/lib/event-emitter-base.ts:78

Alias for emitter.removeListener().

Parameters​

event​

string | symbol

listener​

(...args) => void

Returns​

this

Since​

v10.0.0

Inherited from​

EventEmitterBase.off

removeAllListeners()​

removeAllListeners(event?): this

Defined in: packages/core/src/lib/event-emitter-base.ts:83

Removes all listeners, or those of the specified eventName.

It is bad practice to remove listeners added elsewhere in the code, particularly when the EventEmitter instance was created by some other component or module (e.g. sockets or file streams).

Returns a reference to the EventEmitter, so that calls can be chained.

Parameters​

event?​

string | symbol

Returns​

this

Since​

v0.1.26

Inherited from​

EventEmitterBase.removeAllListeners

listeners()​

listeners(event): Function[]

Defined in: packages/core/src/lib/event-emitter-base.ts:88

Returns a copy of the array of listeners for the event named eventName.

server.on("connection", (stream) => {
  console.log("someone connected!");
});
console.log(util.inspect(server.listeners("connection")));
// Prints: [ [Function] ]

Parameters​

event​

string | symbol

Returns​

Function[]

Since​

v0.1.26

Inherited from​

EventEmitterBase.listeners

listenerCount()​

listenerCount(event): number

Defined in: packages/core/src/lib/event-emitter-base.ts:92

Returns the number of listeners listening for the event named eventName. If listener is provided, it will return how many times the listener is found in the list of the listeners of the event.

Parameters​

event​

string | symbol

Returns​

number

Since​

v3.2.0

Inherited from​

EventEmitterBase.listenerCount

eventNames()​

eventNames(): (string | symbol)[]

Defined in: packages/core/src/lib/event-emitter-base.ts:96

Returns an array listing the events for which the emitter has registered listeners. The values in the array are strings or Symbols.

import { EventEmitter } from "node:events";

const myEE = new EventEmitter();
myEE.on("foo", () => {});
myEE.on("bar", () => {});

const sym = Symbol("symbol");
myEE.on(sym, () => {});

console.log(myEE.eventNames());
// Prints: [ 'foo', 'bar', Symbol(symbol) ]

Returns​

(string | symbol)[]

Since​

v6.0.0

Inherited from​

EventEmitterBase.eventNames

setMaxListeners()​

setMaxListeners(n): this

Defined in: packages/core/src/lib/event-emitter-base.ts:100

By default EventEmitters will print a warning if more than 10 listeners are added for a particular event. This is a useful default that helps finding memory leaks. The emitter.setMaxListeners() method allows the limit to be modified for this specific EventEmitter instance. The value can be set to Infinity (or 0) to indicate an unlimited number of listeners.

Returns a reference to the EventEmitter, so that calls can be chained.

Parameters​

n​

number

Returns​

this

Since​

v0.3.5

Inherited from​

EventEmitterBase.setMaxListeners

getMaxListeners()​

getMaxListeners(): number

Defined in: packages/core/src/lib/event-emitter-base.ts:105

Returns the current max listener value for the EventEmitter which is either set by emitter.setMaxListeners(n) or defaults to EventEmitter.defaultMaxListeners.

Returns​

number

Since​

v1.0.0

Inherited from​

EventEmitterBase.getMaxListeners

prependListener()​

prependListener(event, listener): this

Defined in: packages/core/src/lib/event-emitter-base.ts:109

Adds the listener function to the beginning of the listeners array for the event named eventName. No checks are made to see if the listener has already been added. Multiple calls passing the same combination of eventName and listener will result in the listener being added, and called, multiple times.

server.prependListener("connection", (stream) => {
  console.log("someone connected!");
});

Returns a reference to the EventEmitter, so that calls can be chained.

Parameters​

event​

string | symbol

listener​

(...args) => void

The callback function

Returns​

this

Since​

v6.0.0

Inherited from​

EventEmitterBase.prependListener

prependOnceListener()​

prependOnceListener(event, listener): this

Defined in: packages/core/src/lib/event-emitter-base.ts:117

Adds a one-timelistener function for the event named eventName to the beginning of the listeners array. The next time eventName is triggered, this listener is removed, and then invoked.

server.prependOnceListener("connection", (stream) => {
  console.log("Ah, we have our first user!");
});

Returns a reference to the EventEmitter, so that calls can be chained.

Parameters​

event​

string | symbol

listener​

(...args) => void

The callback function

Returns​

this

Since​

v6.0.0

Inherited from​

EventEmitterBase.prependOnceListener

rawListeners()​

rawListeners(event): Function[]

Defined in: packages/core/src/lib/event-emitter-base.ts:125

Returns a copy of the array of listeners for the event named eventName, including any wrappers (such as those created by .once()).

import { EventEmitter } from "node:events";
const emitter = new EventEmitter();
emitter.once("log", () => console.log("log once"));

// Returns a new Array with a function `onceWrapper` which has a property
// `listener` which contains the original listener bound above
const listeners = emitter.rawListeners("log");
const logFnWrapper = listeners[0];

// Logs "log once" to the console and does not unbind the `once` event
logFnWrapper.listener();

// Logs "log once" to the console and removes the listener
logFnWrapper();

emitter.on("log", () => console.log("log persistently"));
// Will return a new Array with a single function bound by `.on()` above
const newListeners = emitter.rawListeners("log");

// Logs "log persistently" twice
newListeners[0]();
emitter.emit("log");

Parameters​

event​

string | symbol

Returns​

Function[]

Since​

v9.4.0

Inherited from​

EventEmitterBase.rawListeners

bind()​

static bind(program): void

Defined in: packages/core/src/lib/program.ts:241

For a given function, creates a bound function that has the same body as the original function. The this object of the bound function is associated with the specified object, and has the specified initial parameters.

Parameters​

program​

Program

Returns​

void

log()​

log(...args): boolean | undefined

Defined in: packages/core/src/lib/program.ts:287

Write to the log file if one was created.

Parameters​

args​

...any[]

Returns​

boolean | undefined

debug()​

debug(...args): boolean | undefined

Defined in: packages/core/src/lib/program.ts:294

Same as the log method, but only gets called if the debug option was set.

Parameters​

args​

...any[]

Returns​

boolean | undefined

_log()​

_log(pre, msg): boolean | undefined

Defined in: packages/core/src/lib/program.ts:299

Parameters​

pre​

string

msg​

string

Returns​

boolean | undefined

setupDump()​

setupDump(): void

Defined in: packages/core/src/lib/program.ts:307

Set up dump logging. Dumps all input and output to the log file.

Returns​

void

setupTput()​

setupTput(): void

Defined in: packages/core/src/lib/program.ts:387

Set up the terminfo database. Creates the tput object for terminal capability queries.

Returns​

void

setTerminal()​

setTerminal(terminal): void

Defined in: packages/core/src/lib/program.ts:457

Set the terminal type. Reloads terminfo.

Parameters​

terminal​

string

Returns​

void

has()​

has(name): any

Defined in: packages/core/src/lib/program.ts:466

Check if the terminal has a specific capability.

Parameters​

name​

string

Returns​

any

term()​

term(is): boolean

Defined in: packages/core/src/lib/program.ts:473

Check if the current terminal is of a specific type.

Parameters​

is​

string

Returns​

boolean

listen()​

listen(): void

Defined in: packages/core/src/lib/program.ts:480

Initialize the program. Sets up input and output listeners.

Returns​

void

_listenInput()​

_listenInput(): void

Defined in: packages/core/src/lib/program.ts:527

Returns​

void

_listenOutput()​

_listenOutput(): void

Defined in: packages/core/src/lib/program.ts:584

Returns​

void

destroy()​

destroy(): void

Defined in: packages/core/src/lib/program.ts:623

Returns​

void

key()​

key(key, listener): void

Defined in: packages/core/src/lib/program.ts:682

Parameters​

key​

string | string[]

listener​

(...args) => void

Returns​

void

onceKey()​

onceKey(key, listener): void

Defined in: packages/core/src/lib/program.ts:689

Parameters​

key​

string | string[]

listener​

(...args) => void

Returns​

void

removeKey()​

removeKey(key, listener): void

Defined in: packages/core/src/lib/program.ts:696

Parameters​

key​

string | string[]

listener​

(...args) => void

Returns​

void

bindMouse()​

bindMouse(): void

Defined in: packages/core/src/lib/program.ts:722

Returns​

void

_bindMouse()​

_bindMouse(s, buf): void

Defined in: packages/core/src/lib/program.ts:735

Parameters​

s​

string | Buffer<ArrayBufferLike>

buf​

Buffer

Returns​

void

enableGpm()​

enableGpm(): void

Defined in: packages/core/src/lib/program.ts:1122

Returns​

void

disableGpm()​

disableGpm(): void

Defined in: packages/core/src/lib/program.ts:1247

Returns​

void

bindResponse()​

bindResponse(): void

Defined in: packages/core/src/lib/program.ts:1255

Returns​

void

_bindResponse()​

_bindResponse(s): void

Defined in: packages/core/src/lib/program.ts:1268

Parameters​

s​

string | Buffer<ArrayBufferLike>

Returns​

void

response()​

Call Signature​

response(name?, text?, callback?, noBypass?): any

Defined in: packages/core/src/lib/program.ts:1823

Parameters​
name?​

string

text?​

string

callback?​

(err, data?) => void

noBypass?​

boolean

Returns​

any

Call Signature​

response(text, callback): any

Defined in: packages/core/src/lib/program.ts:1829

Parameters​
text​

string

callback​

(err, data?) => void

Returns​

any

write()​

write(text): boolean | undefined

Defined in: packages/core/src/lib/program.ts:1874

Write text to the output stream.

Parameters​

text​

string

Returns​

boolean | undefined

_owrite()​

_owrite(text): boolean | undefined

Defined in: packages/core/src/lib/program.ts:1879

Parameters​

text​

string

Returns​

boolean | undefined

_buffer()​

_buffer(text): true | undefined

Defined in: packages/core/src/lib/program.ts:1883

Parameters​

text​

string

Returns​

true | undefined

flush()​

flush(): void

Defined in: packages/core/src/lib/program.ts:1905

Flush the output buffer.

Returns​

void

_write()​

_write(text, _attr?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:1911

Parameters​

text​

string

_attr?​

any

Returns​

string | boolean | undefined

_twrite()​

_twrite(data): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:1921

Parameters​

data​

string

Returns​

string | boolean | undefined

print()​

print(text, attr?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:1959

Print text with optional attributes. Alias for write().

Parameters​

text​

string

attr?​

any

Returns​

string | boolean | undefined

_ncoords()​

_ncoords(): void

Defined in: packages/core/src/lib/program.ts:1963

Returns​

void

setx()​

setx(x): any

Defined in: packages/core/src/lib/program.ts:1973

Set the absolute x position of the cursor.

Parameters​

x​

number

Returns​

any

sety()​

sety(y): any

Defined in: packages/core/src/lib/program.ts:1981

Set the absolute y position of the cursor.

Parameters​

y​

number

Returns​

any

move()​

move(x, y): any

Defined in: packages/core/src/lib/program.ts:1988

Move the cursor to the given absolute position.

Parameters​

x​

number

y​

number

Returns​

any

omove()​

omove(x, y): void

Defined in: packages/core/src/lib/program.ts:1996

Move the cursor to the given absolute position (optimized).

Parameters​

x​

number

y​

number

Returns​

void

rsetx()​

rsetx(x): any

Defined in: packages/core/src/lib/program.ts:2031

Move cursor relatively on the x axis.

Parameters​

x​

number

Returns​

any

rsety()​

rsety(y): any

Defined in: packages/core/src/lib/program.ts:2040

Move cursor relatively on the y axis.

Parameters​

y​

number

Returns​

any

rmove()​

rmove(x, y): void

Defined in: packages/core/src/lib/program.ts:2049

Move cursor relatively by x and y.

Parameters​

x​

number

y​

number

Returns​

void

simpleInsert()​

simpleInsert(ch, i?, attr?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:2057

Insert a character at the current position.

Parameters​

ch​

string

i?​

number

attr?​

any

Returns​

string | boolean | undefined

repeat()​

repeat(ch, i): string

Defined in: packages/core/src/lib/program.ts:2064

Repeat a character i times.

Parameters​

ch​

string

i​

number

Returns​

string

copyToClipboard()​

copyToClipboard(text): boolean

Defined in: packages/core/src/lib/program.ts:2085

Copy text to clipboard (iTerm2 only). Returns true if successful.

Parameters​

text​

string

Returns​

boolean

cursorShape()​

cursorShape(shape, blink?): boolean

Defined in: packages/core/src/lib/program.ts:2096

Attempt to change cursor shape. Will not work in all terminals. Returns true if successful.

Parameters​

shape​

string

boolean

Returns​

boolean

cursorColor()​

cursorColor(color): boolean

Defined in: packages/core/src/lib/program.ts:2154

Attempt to change cursor color. Returns true if successful.

Parameters​

color​

string

Returns​

boolean

resetCursor()​

resetCursor(): boolean

Defined in: packages/core/src/lib/program.ts:2165

Attempt to reset cursor. Returns true if successful.

Returns​

boolean

getTextParams()​

getTextParams(param?, callback?): any

Defined in: packages/core/src/lib/program.ts:2178

Parameters​

param?​

string | number

callback?​

(err, data?) => void

Returns​

any

getCursorColor()​

getCursorColor(callback?): any

Defined in: packages/core/src/lib/program.ts:2192

Parameters​

callback?​

(err, data?) => void

Returns​

any

nul()​

nul(): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:2200

Normal

Returns​

string | boolean | undefined

bell()​

bell(): any

Defined in: packages/core/src/lib/program.ts:2205

Returns​

any

vtab()​

vtab(): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:2210

Returns​

string | boolean | undefined

form()​

form(): any

Defined in: packages/core/src/lib/program.ts:2216

Returns​

any

backspace()​

backspace(): any

Defined in: packages/core/src/lib/program.ts:2221

Returns​

any

tab()​

tab(): any

Defined in: packages/core/src/lib/program.ts:2228

Returns​

any

shiftOut()​

shiftOut(): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:2235

Returns​

string | boolean | undefined

shiftIn()​

shiftIn(): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:2240

Returns​

string | boolean | undefined

return()​

return(): any

Defined in: packages/core/src/lib/program.ts:2245

Returns​

any

feed()​

feed(): any

Defined in: packages/core/src/lib/program.ts:2251

Returns​

any

index()​

index(): any

Defined in: packages/core/src/lib/program.ts:2271

Esc

Returns​

any

reverseIndex()​

reverseIndex(): any

Defined in: packages/core/src/lib/program.ts:2279

Returns​

any

nextLine()​

nextLine(): any

Defined in: packages/core/src/lib/program.ts:2287

Returns​

any

reset()​

reset(): any

Defined in: packages/core/src/lib/program.ts:2296

Returns​

any

tabSet()​

tabSet(): any

Defined in: packages/core/src/lib/program.ts:2305

Returns​

any

saveCursor()​

saveCursor(key?): any

Defined in: packages/core/src/lib/program.ts:2311

Parameters​

key?​

string

Returns​

any

restoreCursor()​

restoreCursor(key?, hide?): any

Defined in: packages/core/src/lib/program.ts:2320

Parameters​

key?​

string

hide?​

boolean

Returns​

any

lsaveCursor()​

lsaveCursor(key?): void

Defined in: packages/core/src/lib/program.ts:2329

Parameters​

key?​

string

Returns​

void

lrestoreCursor()​

lrestoreCursor(key?, hide?): void

Defined in: packages/core/src/lib/program.ts:2339

Parameters​

key?​

string

hide?​

boolean

Returns​

void

lineHeight()​

lineHeight(): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:2356

Returns​

string | boolean | undefined

charset()​

charset(val?, level?): any

Defined in: packages/core/src/lib/program.ts:2361

Parameters​

val?​

string | number

level?​

number

Returns​

any

enter_alt_charset_mode()​

enter_alt_charset_mode(): any

Defined in: packages/core/src/lib/program.ts:2448

Returns​

any

as()​

as(): any

Defined in: packages/core/src/lib/program.ts:2451

Returns​

any

smacs()​

smacs(): any

Defined in: packages/core/src/lib/program.ts:2454

Returns​

any

exit_alt_charset_mode()​

exit_alt_charset_mode(): any

Defined in: packages/core/src/lib/program.ts:2458

Returns​

any

ae()​

ae(): any

Defined in: packages/core/src/lib/program.ts:2461

Returns​

any

rmacs()​

rmacs(): any

Defined in: packages/core/src/lib/program.ts:2464

Returns​

any

setG()​

setG(val?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:2484

Parameters​

val?​

string | number

Returns​

string | boolean | undefined

setTitle()​

setTitle(title): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:2512

OSC

Parameters​

title​

string

Returns​

string | boolean | undefined

resetColors()​

resetColors(param?): any

Defined in: packages/core/src/lib/program.ts:2529

Parameters​

param?​

string | number

Returns​

any

dynamicColors()​

dynamicColors(param): any

Defined in: packages/core/src/lib/program.ts:2540

Parameters​

param​

string

Returns​

any

selData()​

selData(a, b): any

Defined in: packages/core/src/lib/program.ts:2550

Parameters​

a​

string

b​

string

Returns​

any

cursorUp()​

cursorUp(param?): any

Defined in: packages/core/src/lib/program.ts:2563

CSI

Parameters​

param?​

number

Returns​

any

cursorDown()​

cursorDown(param?): any

Defined in: packages/core/src/lib/program.ts:2577

Parameters​

param?​

number

Returns​

any

cursorForward()​

cursorForward(param?): any

Defined in: packages/core/src/lib/program.ts:2591

Parameters​

param?​

number

Returns​

any

cursorBackward()​

cursorBackward(param?): any

Defined in: packages/core/src/lib/program.ts:2605

Parameters​

param?​

number

Returns​

any

cursorPos()​

cursorPos(row?, col?): any

Defined in: packages/core/src/lib/program.ts:2619

Parameters​

row?​

number

col?​

number

Returns​

any

eraseInDisplay()​

eraseInDisplay(param?): any

Defined in: packages/core/src/lib/program.ts:2644

Parameters​

param?​

string | number

Returns​

any

clear()​

clear(): any

Defined in: packages/core/src/lib/program.ts:2677

Returns​

any

eraseInLine()​

eraseInLine(param?): any

Defined in: packages/core/src/lib/program.ts:2693

Parameters​

param?​

string | number

Returns​

any

charAttributes()​

charAttributes(param, val?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:2783

Parameters​

param​

string | string[]

val?​

boolean

Returns​

string | boolean | undefined

text()​

text(text, attr): string

Defined in: packages/core/src/lib/program.ts:2792

Wrap the given text in terminal formatting codes corresponding to the given attribute name. The attr string can be of the form red fg or 52 bg where 52 is a 0-255 integer color number.

Parameters​

text​

string

attr​

string | string[]

Returns​

string

_attr()​

_attr(param, val?): string | null

Defined in: packages/core/src/lib/program.ts:2797

Parameters​

param​

string | string[]

val?​

boolean

Returns​

string | null

setForeground()​

setForeground(color, val?): any

Defined in: packages/core/src/lib/program.ts:3019

Parameters​

color​

string

val?​

boolean

Returns​

any

setBackground()​

setBackground(color, val?): any

Defined in: packages/core/src/lib/program.ts:3024

Parameters​

color​

string

val?​

boolean

Returns​

any

deviceStatus()​

deviceStatus(param?, callback?, dec?, noBypass?): any

Defined in: packages/core/src/lib/program.ts:3050

Parameters​

param?​

string | number

callback?​

(err, data?) => void

dec?​

boolean

noBypass?​

boolean

Returns​

any

getCursor()​

getCursor(callback?): any

Defined in: packages/core/src/lib/program.ts:3072

Parameters​

callback?​

(err, data?) => void

Returns​

any

saveReportedCursor()​

saveReportedCursor(callback?): any

Defined in: packages/core/src/lib/program.ts:3076

Parameters​

callback?​

(err) => void

Returns​

any

restoreReportedCursor()​

restoreReportedCursor(): any

Defined in: packages/core/src/lib/program.ts:3091

Returns​

any

insertChars()​

insertChars(param?): any

Defined in: packages/core/src/lib/program.ts:3103

Additions

Parameters​

param?​

number

Returns​

any

cursorNextLine()​

cursorNextLine(param?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:3113

Parameters​

param?​

number

Returns​

string | boolean | undefined

cursorPrecedingLine()​

cursorPrecedingLine(param?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:3122

Parameters​

param?​

number

Returns​

string | boolean | undefined

cursorCharAbsolute()​

cursorCharAbsolute(param?): any

Defined in: packages/core/src/lib/program.ts:3130

Parameters​

param?​

number

Returns​

any

insertLines()​

insertLines(param?): any

Defined in: packages/core/src/lib/program.ts:3145

Parameters​

param?​

number

Returns​

any

deleteLines()​

deleteLines(param?): any

Defined in: packages/core/src/lib/program.ts:3152

Parameters​

param?​

number

Returns​

any

deleteChars()​

deleteChars(param?): any

Defined in: packages/core/src/lib/program.ts:3159

Parameters​

param?​

number

Returns​

any

eraseChars()​

eraseChars(param?): any

Defined in: packages/core/src/lib/program.ts:3166

Parameters​

param?​

number

Returns​

any

charPosAbsolute()​

charPosAbsolute(...args): any

Defined in: packages/core/src/lib/program.ts:3173

Parameters​

args​

...number[]

Returns​

any

HPositionRelative()​

HPositionRelative(param?): any

Defined in: packages/core/src/lib/program.ts:3187

Parameters​

param?​

number

Returns​

any

sendDeviceAttributes()​

sendDeviceAttributes(param?, callback?): any

Defined in: packages/core/src/lib/program.ts:3231

Parameters​

param?​

string | number

callback?​

(err, data?) => void

Returns​

any

linePosAbsolute()​

linePosAbsolute(...args): any

Defined in: packages/core/src/lib/program.ts:3245

Parameters​

args​

...number[]

Returns​

any

VPositionRelative()​

VPositionRelative(param?): any

Defined in: packages/core/src/lib/program.ts:3258

Parameters​

param?​

number

Returns​

any

HVPosition()​

HVPosition(row?, col?): any

Defined in: packages/core/src/lib/program.ts:3270

Parameters​

row?​

number

col?​

number

Returns​

any

setMode()​

setMode(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:3371

Parameters​

args​

...any[]

Returns​

string | boolean | undefined

decset()​

decset(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:3376

Parameters​

args​

...any[]

Returns​

string | boolean | undefined

showCursor()​

showCursor(): any

Defined in: packages/core/src/lib/program.ts:3381

Returns​

any

alternateBuffer()​

alternateBuffer(): any

Defined in: packages/core/src/lib/program.ts:3393

Returns​

any

resetMode()​

resetMode(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:3481

Parameters​

args​

...any[]

Returns​

string | boolean | undefined

decrst()​

decrst(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:3486

Parameters​

args​

...any[]

Returns​

string | boolean | undefined

hideCursor()​

hideCursor(): any

Defined in: packages/core/src/lib/program.ts:3491

Returns​

any

cursor_invisible()​

cursor_invisible(): any

Defined in: packages/core/src/lib/program.ts:3497

Returns​

any

normalBuffer()​

normalBuffer(): any

Defined in: packages/core/src/lib/program.ts:3501

Returns​

any

enableMouse()​

enableMouse(): void

Defined in: packages/core/src/lib/program.ts:3508

Returns​

void

disableMouse()​

disableMouse(): void

Defined in: packages/core/src/lib/program.ts:3631

Returns​

void

setMouse()​

setMouse(opt, enable?): void

Defined in: packages/core/src/lib/program.ts:3644

Parameters​

opt​

any

enable?​

boolean

Returns​

void

setScrollRegion()​

setScrollRegion(top?, bottom?): any

Defined in: packages/core/src/lib/program.ts:3775

Parameters​

top?​

number

bottom?​

number

Returns​

any

saveCursorA()​

saveCursorA(): any

Defined in: packages/core/src/lib/program.ts:3794

Returns​

any

restoreCursorA()​

restoreCursorA(): any

Defined in: packages/core/src/lib/program.ts:3803

Returns​

any

cursorForwardTab()​

cursorForwardTab(param?): any

Defined in: packages/core/src/lib/program.ts:3816

Lesser Used

Parameters​

param?​

number

Returns​

any

scrollUp()​

scrollUp(param?): any

Defined in: packages/core/src/lib/program.ts:3824

Parameters​

param?​

number

Returns​

any

scrollDown()​

scrollDown(param?): any

Defined in: packages/core/src/lib/program.ts:3832

Parameters​

param?​

number

Returns​

any

initMouseTracking()​

initMouseTracking(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:3843

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

resetTitleModes()​

resetTitleModes(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:3858

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

cursorBackwardTab()​

cursorBackwardTab(param?): any

Defined in: packages/core/src/lib/program.ts:3863

Parameters​

param?​

number

Returns​

any

repeatPrecedingCharacter()​

repeatPrecedingCharacter(param?): any

Defined in: packages/core/src/lib/program.ts:3871

Parameters​

param?​

number

Returns​

any

tabClear()​

tabClear(param?): any

Defined in: packages/core/src/lib/program.ts:3884

Parameters​

param?​

number

Returns​

any

mediaCopy()​

mediaCopy(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:3900

Parameters​

args​

...(string | number)[]

Returns​

string | boolean | undefined

mc0()​

mc0(): any

Defined in: packages/core/src/lib/program.ts:3904

Returns​

any

print_screen(): any

Defined in: packages/core/src/lib/program.ts:3909

Returns​

any

mc5()​

mc5(): any

Defined in: packages/core/src/lib/program.ts:3913

Returns​

any

prtr_on()​

prtr_on(): any

Defined in: packages/core/src/lib/program.ts:3918

Returns​

any

mc4()​

mc4(): any

Defined in: packages/core/src/lib/program.ts:3922

Returns​

any

prtr_off()​

prtr_off(): any

Defined in: packages/core/src/lib/program.ts:3927

Returns​

any

mc5p()​

mc5p(): any

Defined in: packages/core/src/lib/program.ts:3931

Returns​

any

prtr_non()​

prtr_non(): any

Defined in: packages/core/src/lib/program.ts:3936

Returns​

any

setResources()​

setResources(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:3952

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

disableModifiers()​

disableModifiers(param?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:3969

Parameters​

param?​

string | number

Returns​

string | boolean | undefined

setPointerMode()​

setPointerMode(param?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:3981

Parameters​

param?​

string | number

Returns​

string | boolean | undefined

softReset()​

softReset(): any

Defined in: packages/core/src/lib/program.ts:3987

Returns​

any

requestAnsiMode()​

requestAnsiMode(param?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4006

Parameters​

param?​

string | number

Returns​

string | boolean | undefined

requestPrivateMode()​

requestPrivateMode(param?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4015

Parameters​

param?​

string | number

Returns​

string | boolean | undefined

setConformanceLevel()​

setConformanceLevel(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4029

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

loadLEDs()​

loadLEDs(param?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4041

Parameters​

param?​

string | number

Returns​

string | boolean | undefined

setCursorStyle()​

setCursorStyle(param?): any

Defined in: packages/core/src/lib/program.ts:4052

Parameters​

param?​

string | number

Returns​

any

setCharProtectionAttr()​

setCharProtectionAttr(param?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4091

Parameters​

param?​

number

Returns​

string | boolean | undefined

restorePrivateValues()​

restorePrivateValues(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4098

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

setAttrInRectangle()​

setAttrInRectangle(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4107

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

savePrivateValues()​

savePrivateValues(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4114

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

manipulateWindow()​

manipulateWindow(...args): any

Defined in: packages/core/src/lib/program.ts:4164

Parameters​

args​

...any[]

Returns​

any

getWindowSize()​

getWindowSize(callback?): any

Defined in: packages/core/src/lib/program.ts:4175

Parameters​

callback?​

(err, data?) => void

Returns​

any

reverseAttrInRectangle()​

reverseAttrInRectangle(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4185

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

setTitleModeFeature()​

setTitleModeFeature(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4198

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

setWarningBellVolume()​

setWarningBellVolume(param?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4207

Parameters​

param?​

string | number

Returns​

string | boolean | undefined

setMarginBellVolume()​

setMarginBellVolume(param?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4216

Parameters​

param?​

string | number

Returns​

string | boolean | undefined

copyRectangle()​

copyRectangle(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4227

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

enableFilterRectangle()​

enableFilterRectangle(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4242

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

requestParameters()​

requestParameters(param?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4257

Parameters​

param?​

number

Returns​

string | boolean | undefined

selectChangeExtent()​

selectChangeExtent(param?): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4265

Parameters​

param?​

number

Returns​

string | boolean | undefined

fillRectangle()​

fillRectangle(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4274

Parameters​

args​

...(string | number)[]

Returns​

string | boolean | undefined

enableLocatorReporting()​

enableLocatorReporting(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4290

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

eraseRectangle()​

eraseRectangle(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4298

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

setLocatorEvents()​

setLocatorEvents(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4313

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

selectiveEraseRectangle()​

selectiveEraseRectangle(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4320

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

requestLocatorPosition()​

requestLocatorPosition(param?, callback?): any

Defined in: packages/core/src/lib/program.ts:4364

Parameters​

param?​

string | number

callback?​

(err, data?) => void

Returns​

any

req_mouse_pos()​

req_mouse_pos(): any

Defined in: packages/core/src/lib/program.ts:4383

Returns​

any

insertColumns()​

insertColumns(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4390

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

deleteColumns()​

deleteColumns(...args): string | boolean | undefined

Defined in: packages/core/src/lib/program.ts:4397

Parameters​

args​

...number[]

Returns​

string | boolean | undefined

out()​

out(name, ...args): any

Defined in: packages/core/src/lib/program.ts:4401

Parameters​

name​

string

args​

...any[]

Returns​

any

sigtstp()​

sigtstp(callback?): void

Defined in: packages/core/src/lib/program.ts:4408

Parameters​

callback?​

() => void

Returns​

void

pause()​

pause(callback?): () => void

Defined in: packages/core/src/lib/program.ts:4419

Parameters​

callback?​

() => void

Returns​

(): void

Returns​

void

resume()​

resume(): void

Defined in: packages/core/src/lib/program.ts:4456

Returns​

void